Snap fastener slide member



March 3 31. a. JOHNSON ETAL SNAP FASTENER SLIDE MEMBER Filed May 31, 1930 Patented 31, 1931 earns @FFICE GUSTAV JOHNSON, GIT NEST EOXBUBY, AND DIDRICK DYBESEN, OF- SOMERVILLE, MASSACHUSETTS SNAP FASTENEB, SLIDE IVIEMBER Application filed May 31,

Our invention aims to provide improvements in separable snap fasteners and is directed particularly to snap fastener slide member.

In the drawings which illustrate a preferred embodiment of our invention:

Figure 1 is a plan view of a snap fastener attached to a strap;

2 is a section taken on the line 22 of Figure 1, the lower portion of the strap and the fastener attached thereto being shown in elevation;

Fig. 3 is a top plan View of the slide mem ber of the snap fastener; and

Fig. 4 is a bottom plan view of the slide member.

The particular embodiment of our invention illustrated by the drawings comprises a snap fastener socketmember in the form of a buckle slide adapted for use on straps of overshoes, gloves and the like.

Any suitably shaped plate member may be used according to the design desired and the construction of the plate may vary. However, we have shown a rectangular shaped plate 1 having central crossbar 2 at each side of which is a slot 3, as shown in Figs. 3 and 4. The central crossbar 2 is apertured in the center and a snap fastener socket member l- (Fig. 2) is attached to the crossbar by means of a tubular rivet 5. The rivet extends from the socket member a through the aperture 6 in the bar 2 and has its free end portion bent outwardly and downwardly against that face of the crossbar 2 which is against the strap 7. Because the rivet 5 is initially provided with an open end the upset portion is only of a single thickness and therefore, does not to any extent prevent the strap '4" from lying in a smooth manner where it asses over the crossbar 2. An upset closed end rivet tends to space the strap a substantial distance from the crossbar, because the extra thickness and thereby wrinkles the ance of the installation.

. scope thereof'is best illustrated and'dcscribed tener element carried by said crossbar, prong 1930. Serial No. 458,109.

material of the strap and mars the appear- Our invention is also directed to an improved means for holding the plate 1 in position upon a strapso that it cannot slip, 5 but which does not prevent moving the plate for adjustment when desirable. In carrying out this part of our invention, we have provided two widely separated sharp pointed prongs 8 at each edge of the crossbar 2 (Figs.

55 3 and 4:) for engagement with the strap 7.

l Vhile the use of such prongs 8 is old, we

believe that no one has contemplated the use of yieldable portions 9-9 formed integral with the plate at those edges of the slots 33 opposite the edges where the prongs 8 are located for cooperation with the prongs. Those yieldable portions 9 are located in, a plane above the plane of the crossbar J and are adapted to press upon the strap 7 where it passes through the slots (Fig. to force the prongs 8 into the material and hold the strap in engagement therewith when the plate has been moved to a desired position. Thus lateral stress exerted upon the strap 7 cannot move it relative to the plate when the fastener is engaged with the stud member 10.

The yieldable portions 99 are made substantially as Wide as the spaces between the pointed prongs 8 to exert an even pressure 7. throughout su'bstantially'the entire width of the strap. The yieldable portions S 9 pro ject into the slots 33 and are made resilient by means of the cut-out portions 11 as shown in Fig. 8. j.- I Y While we have illustrated and described a preferred embodiment of our invention we do notwish to'be limited thereto because the in the following claims,

Claims: I 1. A snap fastener member comprising a plate having a central crossbar and slots located at the sides of the crossbar, a snap fasmeans located on said plate adjacent to one edge of one of said slots and a spring tongue located on said plate adjacent to the same slot as said prong means, said spring tongue being adapted to press a strap or the like against said prong means.

2. A snap fastener member comprising a plate having a central crossbar and slots located at the sides of the crossbar, a snap fastener element carried by said crossbar, prong means located on said plate adjacent to one edge of one of said slots and a spring tongue located on said plate adjacent to the same slot at the opposite side from said prong means, said spring tongue being adapted to press a strap or the like against said prong means.

3. A snap fastener member comprising aplate having a central crossbar and slots 10* cated at the sides of the crossbar, a snap fastener element carried by said crossbar, prong means located on said plate adjacent to one edge of one of said slots, a spring tongue located on said plate adjacent to the same slot at the opposite side from said prong means, said spring tongue'being adapted to press a strap or the like against said prong means and a similar tongue andprong means lclicated on said plate adjacent to the other s 0t.

4. A snap fastener member comprising a plate having a central crossbar and slots located at the sides of the crossbar, a snap fastener element carried by said'crossbar, prong means located on said plate adjacent to one edge of one of said slots and asprin'g tongue located on said plate adjacent to the same slot as said prong means, said spring tongue being adapted to press a strap" or the like against said prong means, said prong means comprising two widely spaced sharp pointed projections and said spring tongue being presented between said projections.

5. A snap fastener member comprising a plate having a central crossbar and slots located at the sides of the crossbar, a snap fastener element carried by said crossbar, prong means located on said plate adjacent to one edge of one of said slots and a spring tongue located on said plate adjacent to the same slot at the opposite side from said prong means, said spring tongue being adapted to press a strap or the like against said prong means and said plate being apertured between said spring tongue and the edge of the plate'to add resiliency to said spring tongue.

' 6. A slide member of a snap fastener buckle devicehaving 'a crossbar apertured to permit attachmentof a snap fastener-member thereto, a snap" fastener element" presented at that side of the crossbar which is opposite the side which engages a strap or the like and a tubular open-ended rivet means extending from said snapfa'stener element through the aperture hithe crossbar tongue means adapted to press a strap mto' close contact with the upset end of said rivet means and sa1d crossbar.

In testimony whereof, We have slgned our names to this specification. p

GUSTAV JOHNSON. DIDRICK DYRESEN. 

